That white, chalky film in your shower? It’s not just your glass fogging up—it’s soap scum. This mix of soap, water minerals, and grime can cling to anything from shower curtains to tubs, doors, and ...

Soap scum, a gray or white film formed when hard water mixes with soap and other residues like dirt and body oil, often appears on shower doors, bathtubs, tiles, and faucets. Besides being unsightly, ...